MpeX family
Description
MpeX is a yet uncharacterized member of the CpeF-MpeU-V-X superfamily found in low light-adapted Prochlorococcus strains, such as P. marinus strain SS120/CCMP1375 (Hess et al. 1999, Wiethaus et al. 2010b, Carrigee et al. 2021). Its predicted function is to bind a PEB or PUB at Cys-50,61 of beta-PEIII, but most likely a PUB given that the PUB:PEB ratio of PEIII is 3:1 (Steglich et al. 2003).
References
- Carrigee et al., 2021. MpeV is a lyase isomerase that ligates a doubly linked phycourobilin on the β-subunit of phycoerythrin I and II in marine Synechococcus J Biol Chem, 296, 100031.
- Hess et al., 1999. Phycoerythrins of the oxyphotobacterium Prochlorococcus marinus are associated to the thylakoid membrane and are encoded by a single large gene cluster Plant Molecular Biology, 40, 507-521.
- Wiethaus et al., 2010. Phycobiliproteins in Prochlorococcus marinus: Biosynthesis of pigments and their assembly into proteins Eur J Cell Biol, 89, 1005-1010.
Showing only sure genes
| Gene | Locus tag | Genbank | Species | Strain | PBP in rods | Pigment type | Remark | Length | Last change |
|---|---|---|---|---|---|---|---|---|---|
| MpeX family | NATL1_03881 | YP_001014217.1 | Prochlorococcus marinus | NATL1A | PEIII | high b/a | 287 | 04-20-2023 | |
| MpeX family | PMN2A_1674 | YP_292865.1 | Prochlorococcus marinus | NATL2A | PEIII | high b/a | 287 | 04-20-2023 | |
| MpeX family | Pro0340 | NP_874734.1 | Prochlorococcus marinus | SS120 (CCMP1375) | PEIII | high b/a | 298 | 04-20-2023 | |
| MpeX family | P9211_03351 | YP_001550220.1 | Prochlorococcus marinus | MIT9211 | PEIII | High b/a | 285 | 04-20-2023 | |
| MpeX family | P9303_22351 | YP_001018235.1 | Prochlorococcus sp. | MIT9303 | PEIII | high b/a | 315 | 04-20-2023 | |
| MpeX family | PMT1680 | NP_895507.1 | Prochlorococcus sp. | MIT9313 | PEIII | high b/a | 306 | 04-20-2023 |
Model strains, Marine strains
Last update: 26 Apr 2023 13:06:01
